refactor pricing data seeder to fold surcharge types into rates
update route meta subtitle to remove surcharge types
enhance RuleEngineFormDialog to support conditional field visibility
remove surcharge types from URL constants and related services
add cargo leaf options query for bulk cargo type selection
update RuleEngineResourcePage to utilize cargo leaf options
modify resources configuration to remove surcharge types
implement migration to fold surcharge types into rates
create utility to derive legacy rate types from new rate structure
- Introduced `DemoFreightDataSeeder` to seed demo freight data including wagons, approval rules, and staff users.
- Added `seed:freight-demo` script to `package.json` for easy execution.
- Updated permissions for operations officer and added permission checks in various components.
- Enhanced sidebar and booking actions to respect user permissions.
